Meanwhile, the planed \(\mu -e\)  conversion in nuclei experiments will push current limits on the conversion rates, e.g., \(\text{CR}(\mu -e,\text{Ti})<4.3\times 10^{-12}\)  [1]} down to about \(10^{-18}\)  [2]}. The converting rate is then expressed as [3]}
\(\text{CR}(\mu -e,\text{Ti})=2G_F^2\left|A_R D+\tilde{g}_{LV}^p V^p\right|^2,\) 
